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Java > Open Source Codes > org > jboss > axis > encoding > ser > BeanDeserializerFactory


1 /*
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25  * if and wherever such third-party acknowledgments normally appear.
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55
56 package org.jboss.axis.encoding.ser;
57
58 import org.jboss.axis.description.TypeDesc;
59 import org.jboss.axis.encoding.Deserializer;
60 import org.jboss.axis.utils.BeanPropertyDescriptor;
61 import org.jboss.axis.utils.BeanUtils;
62 import org.jboss.axis.utils.JavaUtils;
63
64 import javax.xml.namespace.QName JavaDoc;
65 import java.util.HashMap JavaDoc;
66 import java.util.Map JavaDoc;
67
68 /**
69  * DeserializerFactory for Bean
70  *
71  * @author Rich Scheuerle <scheu@us.ibm.com>
72  * @author Sam Ruby <rubys@us.ibm.com>
73  */
74 public class BeanDeserializerFactory extends BaseDeserializerFactory
75 {
76
77    /**
78     * Type metadata about this class for XML deserialization
79     */
80    protected TypeDesc typeDesc = null;
81    protected Map JavaDoc propertyMap = null;
82
83    public BeanDeserializerFactory(Class JavaDoc javaType, QName JavaDoc xmlType)
84    {
85       super(BeanDeserializer.class, xmlType, javaType);
86
87       // Sometimes an Enumeration class is registered as a Bean.
88 // If this is the case, silently switch to the EnumDeserializer
89 if (JavaUtils.isEnumClass(javaType))
90       {
91          deserClass = EnumDeserializer.class;
92       }
93
94       typeDesc = TypeDesc.getTypeDescForClass(javaType);
95       propertyMap = getProperties(javaType, typeDesc);
96    }
97
98    /**
99     * Get a list of the bean properties
100     */
101    public static Map JavaDoc getProperties(Class JavaDoc javaType, TypeDesc typeDesc)
102    {
103       Map JavaDoc propertyMap = null;
104
105       if (typeDesc != null)
106       {
107          propertyMap = typeDesc.getPropertyDescriptorMap();
108       }
109       else
110       {
111          BeanPropertyDescriptor[] pd = BeanUtils.getPd(javaType, null);
112          propertyMap = new HashMap JavaDoc();
113          // loop through properties and grab the names for later
114 for (int i = 0; i < pd.length; i++)
115          {
116             BeanPropertyDescriptor descriptor = pd[i];
117             propertyMap.put(descriptor.getName(), descriptor);
118          }
119       }
120
121       return propertyMap;
122    }
123
124    /**
125     * Optimize construction of a BeanDeserializer by caching the
126     * type descriptor and property map.
127     */
128    protected Deserializer getGeneralPurpose(String JavaDoc mechanismType)
129    {
130       if (javaType == null || xmlType == null)
131       {
132          return super.getGeneralPurpose(mechanismType);
133       }
134
135       if (deserClass == EnumDeserializer.class)
136       {
137          return super.getGeneralPurpose(mechanismType);
138       }
139
140       return new BeanDeserializer(javaType, xmlType, typeDesc, propertyMap);
141    }
142 }
143
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